which war did the most americans die - american revolutionary war?, WW1, US civil war? or WW2?

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To determine which war had the most American casualties, we need to compare the number of American deaths in each war. Let's go through the information:

1. American Revolutionary War (1775-1783): The exact number of American casualties during the Revolutionary War is challenging to determine, but estimates suggest around 25,000 American soldiers died.

2. World War 1 (1914-1918): In World War 1, approximately 116,516 Americans lost their lives.

3. U.S. Civil War (1861-1865): The Civil War was the deadliest conflict in American history. It resulted in an estimated 620,000 total deaths, with around 360,000 of them being Union soldiers (Northern states).

4. World War 2 (1939-1945): World War 2 saw the highest number of American military fatalities. The United States lost around 405,399 servicemen during the war.

Based on these figures, the U.S. Civil War had the highest number of American casualties, with an estimated 360,000 Union soldiers killed. World War 2 comes in second place, with around 405,399 American military fatalities.

Remember that these figures are estimates and can vary slightly depending on different sources.